But in his only chance to work out in front of NFL scouts, Davis made some of those concerns go away with one simple leap, a 40.5-inch vertical that would have ranked second for cornerbacks and fifth overall at the NFL Combine, in front of scouts from every NFL team at Auburn's Pro Day on Tuesday.

"Chris did a great job displaying his athletic ability today," Spencer Cannold, Davis's agent along with Joe Linta, said in a text message following the workout. "40.5 on the vert will go a long way toward proving to teams that he can stick with some of the bigger receivers in the league."

A groin injury kept Davis, who did not talk to reporters on Tuesday, from competing in on-field drills at the NFL Combine, but he felt healthy enough to go at Pro Day on Saturday.

Physical in press coverage at the Senior Bowl as a 200-pounder at cornerback, Davis needed to show he had the speed to play on the outside in the NFL, at least according to one draft analyst.

"He was unable to work out at the Combine; this is a huge day for him," NFL.com analyst Mike Mayock said. "He’s considered a middle-round pick; he has to run 4.5 or better, I believe."

Davis clocked a 4.51-second 40-yard dash, a number that should solidify his status as a mid-round prospect at cornerback.

With the measurables in tow, Davis can now focus on individual workouts with teams, beginning with a workout he already has scheduled with the Detroit Lions on March 17, and he's been in conversations with other teams about individual workouts in the two months leading up to the draft.

Auburn's Pro Day was about proving he had the athleticism to match his strength.